Technicians who come for maintenance have been known to mutter darkly about the buildup of manure.

Catastrophe!-oversome startling development in the tale or mutter darkly, or sigh with pleasure, or giggle.

Politicians mutter darkly about smear campaigns against cork by the plastic lobby - claims that remain unproven.

Those who slaved over hot stoves are beginning to mutter darkly that's it's an awful lot of fuss.

Bill would mutter darkly.

I'm also over halfway through a weekend of not speaking, as part of a social experiment that made my dad mutter darkly about arts degrees.

Looks mighty curious, don't it? she muttered darkly to the old man.

Then he snorted and lumbered off, muttering darkly beneath his breath.

Some people muttered darkly of fatal collisions on the hill.

Then he muttered darkly, 'Knew we should've stayed at Dhavran.'

I came in from the rain on Friday, dripping like Ophelia and muttering darkly.

I saw that he glanced over his shoulder at intervals, muttering darkly to himself.

The Children's Court: The mother stomped out of the courtroom muttering darkly to herself.

Some in the crowd muttered darkly at what was considered to be an outrageous claim.

That drew a snarl from Ramesh, who was still muttering darkly from the opposite bunk.

Ebben spat and muttered darkly of wargs and skinchangers.